Car-unloading machine.



J. MoMYLE-R;

OAR UNLOADING MACHINE. APPLICATION FILED AUG. 15, 1904.

Patented Feb.22, 1910.

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.51 v e): f 0 71 J. MoMYLER.

OAR UNLOADING MACHINE.

APPLICATION IILBD 11119.16, 1904.

Patented Feb. 22, 1910.

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new

J. MGMYLER. CAR UNLOADING MACHINE. APPLICATION FILED AUG.15, 1904.

5350,2385 Patented Feb. 22, 1910.

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Patented Feb. 22, 1910.

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In 2/6 :2 i0 7? in srn r c on.

JOHN MGMYLER, OF CLEVELAND, OHIO, ASSIGNOR TO THE MQMYLER MANUFACTUR-ING COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

CAR-UNLOADING MACHINE.

Specification of Letters Patent.

Patented Feb. 22, 1910.

To all whom it may concern.-

Be it known that I, JOHN MCMYLER, a citizen of the United States,residing at Cleveland, in the county of Cuyahoga and State of Ohio, haveinvented a certain new and useful Improvement in Car-Unloading Machines,of which the following is a full, clear, and exact description,reference being had to the accompanying drawings.

This invention is intended primarily as an improvement on the type ofcar unloading machines which raise the loaded car to any desired height,and then turn it over so as to spill its contents on to an inclinedapron, or chute, which is verticallyadjustable to accommodate itself toany desired dumping elevation of the car. These machines are used formost part to dump cars which are loaded with coal, and serve as themeans for readily transferring said coal from the cars into the holds ofvessels, inasmuch as said apron is generally arranged to discharge thematerial thereon through the vessels hatchway. Coal is apt to becomebroken, more or less, in transit, or when being dumped, wherefore itought to be screened before it is delivered into the vessel.

This machine has for its object to screen the coal dumped onto thevertically adjustable apron of such a car unloading machine, and toconvey the screenings to a suitable discharge point, irrespective of theheight of the apron.

The invention may be characterized as consisting of the combination ofparts shown in the drawing and hereinafter described and pointed outdefinitely in the claims.

In the drawings, Figure l is a side elevation of a car dumping machineequipped with my invention; the full lines showing the apron in itslowest position, and a car in position to discharge its load upon thesame, and the dotted lines showing the same parts when the apron is inits most elevated position; Fig. 2 is a plan view of the apron formingpart of that machine; Fig. 3 is an enlarged plan view of one side ofsaid apron; Fig. 4 is a sectional side elevation of said apron in theplane indicated by line 4: in Fig. 2; Fig. 5 is a sectional end view ofthe left end of the apron in the plane indicated by line 55 on Fig. 2;Fig. 6 is a side elevation of the hopper which is attached to thevertically movable girder, at the left end thereof; Fig. 7 is a frontView of the same hopper; Fig. 8 is a. View of the hopper shown in Fig. 6looking in the direction of the arrow at the bottom of said figure; Fig.9' is a detached side elevation of the spout fastened to the apronthrough which the screenings are delivered into said hopper; Fig. 10 isa sectional View, in the plane indicated by line 1010 of Fig. 4:,looking in the direction of the arrow below said figure; Fig. 11 is anenlarged View, partly in section, of certain mechanism to be hereinafterdescribed.

Referring to the parts by letters, A represents the trestle tower, orframe of the car unloading machine.

B is the vertical movable cradle whereon the car is held while it isbeing lifted and dumped.

C represents the horizontal beam, or girder, which extends across thefront of the machine. Car dumping machines, as they have beenconstructed for many years, have contained such a girder, to which anapron, corresponding with apron D, has been pivoted, and in suchmachines suitable mechanism has been used for adjusting said girder upand down to the required height and for holding it in any requiredposition. It has not been thought necessary to show in the drawing anymechanism for so adjusting the girder for the reason that such mechanismis so well known, and for the further reason that the present inventiondoes not include any particular means for imparting to the girder therequired vertical movement or adjustment. Ears 0 may be formed upon thegirder C near its ends; and to these cars lifting cables, as X in Fig.5, may be attached, said cables extending upward and being suitablyguided to and connected with mechanism for taking them in and payingthem out as required.

D represents the apron which is pivoted on a horizontal axis to thisgirder,the front end of this apron being supported by suitable cables Fin such position that the apron will have the desired inclination.

So much of the machine as is above described is of familiar form, andneeds no further description.

The upper part (Z of the floor of the apron is a screen of any suitableconstruction. Below this screen-formed part of said apron is ascreenings chamber E, into which falls such material as may find its waythrough said screenthis chamber having an inclined floor plate 6. Theinclined chamber E is downwardly enlarged at its front end, to form atrough e, which serves as the housing of a conveyer screw Q. It isevident that the screenings which fall into chamber E onto the floorplate 0 will find their way by gravity into said housing which extendsthe entire width of the apron. The screw conveyer'Q 'is constantlyrotated by means of the engine R- supported upon a shelf like lateralextension (Z of the apron.

At the left end of the structure there is a hopper S which is secured tothe girder C. The entrance to this hopper is through its front side; anda rearwardly extend-ed discharge spout 6 which is at the left end of thetrough 6, projects through the opening in the front side of this hopper,wherefore the screenings which are moved along the trough by the screwconveyer fall through ceive the material delivered into the hopper andconvey it to the foot of the trestle tower. The upper one of thesetelescoping sections is secured to the hopper, and the lower section isfixed to the machine trestle at its lower end. Then the apron is at itslowest position these telescoping pipe sections are collapsed, but whenthe apron is raised they are automatically withdrawn one from the other,as much as may be necessary, so as to always form a discharge pipe tothe same discharge point.

The screen-formed part of the floor of the apron may be of any suitableconstruction. But it is desirable that the holes through this screenshall be variable in size, to suit different conditions and difierentrequirements as to the size of the pieces of coal which shall bescreened out. In the construction shown the floor d. has a plurality ofrows of diagonal perforations (Z. Underneath this perforated floor are aplurality of laterally movable plates G,-there being one plate betweeneach pair of floor supporting beams (1 In each of these plates are rowsof perforations g which are similar to the perforations d in form andarrange ment; wherefore in one position of a plate G its perforationswill register with the perforations d.

.All of the plates G are secured to two end- "wise movable bars H,supported in suitable brackets h secured to the under side of the apron.By moving these bars all of the plates G may be moved crosswise of theapron so as to close the perforations in the apron to a greater or lessextent, or entirely, as desired. The endwise movement of said bars II iseffected by the mechanism which is shown in Fig. 11. Each bar H isthreaded at its right end and engages with a nut K having an annulargroove which is embraced by a fixed bracket J secured to the apron. Eachof these nuts is formed with a bevel gear on its outer end 5 and thesebevel gears engage with bevel gears m s-ecured to a shaft M, which isrotatably mounted on the apron. A hand wheel I affords convenient meansfor turning the shaft M, the movement of said hand wheel beingtransmitted to said shaft through two gears z and m.

Having described my invention, I claim :7

1. In a car dumping machine, the combination of an inclined apron havinga part of its floor in the form of a screen, a screenings chambersupported by said apron beneath said floor in position to receive thematerial which passes through said screen, a downwardly extendeddischarge pipe located at one side of said apron and having its upperend in position to receive the screenings discharged by the conveyerfrom said screenings chamber, and a conveyer in the screenings chamberfor moving the screenings therein crosswise of the apron and dischargingit into said discharge pipe, and means foradjusting the inclination ofsaid apron.

2., In a car dumping machine having a transverse girder, the combinationof an inclined apron hinged to such girder and having a part of itsfloor in the form of a screen, a screenings chamber supported by saidapron beneath said screen, which chamber has a discharge opening throughits floor at the lower end thereof, a laterally extended conveyer pocketsecured to the apron beneath said discharge opening, a

conveyer in said pocket, a hopper supported by the girder at one side ofsaid apron in position to receive material forced out of the end-of saidpocket by said conveyer, and a downwardly extended discharge pipesecured to said hopper.

3. In a car dumping machine, the combination of an inclined apron havinga part of its floor in the form of a screen, a screenings chambersecured to said apron beneath said screen, there being a transversedischarge opening through the floor of said chamber at the lower endthereof, a transversely extended pocket secured to the apron beneathsaid discharge opening and in communication therewith, a conveyer insaid pocket for forcing material delivered thereto toward the end ofsaid pocket atone side of said apron,

and a downwardly extended discharge pipe arranged with its upper endcommunicating with the discharge end of said pocket.

In a car dumping machine having atrestle tower, and a girder adjustableup and down thereon, the combination of an inclined apron pivoted tosuch girder and having a part of its floor in the form of a screen, ascreenings chamber supported by said apron beneath said screen, alaterally disposed screw conveyer operating in said chamber, amotorsupported upon said apron and operatively connected with said screwconveyor and a downwardly extended discharge pipe communicating with thedischarge end of said chamber.

5. In a car dumping machine having a vertically adjustable apron, thecombination of such apron having a part of its floor in the form of ascreen, a screenings chamber supported by said apron beneath saidscreen, a conveyer in said chamber for moving the screenings to thedischarge end thereof, and a telescoping discharge pipe whose lowestsection is fixed and whose upper section is vertically movable with theapron and is arranged to receive the screenings delivered from thedischarge end of said screenings chamber.

6. In a car dumping machine having a supporting girder, the combinationof an apron pivoted to such girder and having a part of its floor in theform of a screen, a screenings chamber below the screen and secured tosaid apron, said chamber having at its discharge end a rearwardly curveddischarge pipe, a conveyer 1n said chamber, a hopper secured to saidgirder and having an inlet opening in its front side through which saidcurved spout projects, and a I discharge pipe connected with saidhopper.

7. In a car dumping machine, having a vertically adjustable pivotedapron the combination of such apron having a smooth floor converging toa discharge opening, the upper portion of said floor having perforationsextending across it, a chamber beneath such perforations, a lateralconveyer carried by the apron and operating to convey the screeningslaterally, and means mounted on the apron for operating such co-nveyer.

8. In a car dumping machine, having a vertically adjustable girder thecombination of an apron pivoted to the girder, a screen in the floor ofthe apron, a screenings chamber carried by the apron on its under sidebeneath the screen, a discharge spout communicating with such screeningchamber and carried by the apron, a hopper carried by the girder withwhich such discharge spout movably connects and a telescoping dischargepipe from the hopper.

In testimony whereof, I hereunto aflix my signature in the presence oftwo witnesses.

JOHN MoMYLER Witnesses E. B. GILoHRrsT, E. L. THURSTON.

